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The rms value of an alternating current...

The rms value of an alternating current

A

is equal to 0.707 times peak value

B

is equal to 0.636 times peak value

C

is equal sqrt2 times the peak value

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
A
`I_("rms")=I_0/sqrt(2) ~~ 0.707I_0`
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Knowledge Check

  • The r.m.s. value of an alternating current is

    A
    less than zero
    B
    equal to its peak value
    C
    less than its peak value
    D
    greater than its peak value

  • The ratio of peak value and r.m.s value of an alternating current is

    A
    1
    B
    `1/2`
    C
    `sqrt(2)`
    D
    `1//sqrt(2)`

  • The rms value of alternating current which when passed through a resistor produces heat energy four times that produced by directed current of 2 A through the same resistor in same time is

    A
    2A
    B
    4A
    C
    8A
    D
    16A

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